Antifriction journal-bearing



(No Model.)

' M. B. JONES.

ANTIFRIUTION JOURNAL BEARING.

Np. 5073;143. Patented Aug.- 15 1893.

UNITED STATESv PATENT OFFICE.

MATHIAS B. JONES, OF BIN GHAMTON, NEW YORK.

ANTIFRICTION JOURNAL-BEARING.

SPECIFICATION forming part of Letters Patent No. 503,143, dated August15, 1893. Application filed January 31, 1893. Serial No. 460,414. (Nomodel.)

To all whom it may concern.-

Be it known that I, MATHIAS B. J ONES, a citizen of the United States,residing at Binghamton, in the county of Broome and State of New York,have invented certain new and useful Improvements in Antifriction Journal- Bearings; andI do hereby declare the following to be a full,clear, and exact description of the invention, su ch as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in anti-friction journal bearings.

The objects of my invention are to reduce to a minimum the frictionalarea of the contacting surfaces between the ends of the rollers andcasing and thus promote the efficiency of such bearing by preventing anend thrust or movement of the anti-friction rollers, and at the sametime to combine with means for these purposes a device which will givewarning of a hot journal box in time to prevent any damage to thejournal.

To these ends my invention consists of the parts and combinations ofparts, as hereinafter described and particularly claimed.

My invention is illustrated in the accompanying drawings in which Figure1, is a View in perspective of the journal box, showing heads of thejournal, anti-friction rollers, and cap; Fig. 2, a central longitudinalview, partly in section, on line 0:, w, of Fig. 1, and Fig. 3, a detailsectional longitudinal view of a roller showing caps and receptacles forheat indicator.

Referring to the drawings, A, represents the journal box, which isadapted to be used with all car axle boxes of usual form in use at thepresent time on railroad cars. It is a solid cast iron box, oblong inshape, although it may be made in other forms, and is cast in one pieceexcept the cap head, B. This head is square, conforming to the form ofthe end of the box, has a plane inner surface which forms a rest for theanti-friction rollers,and which is secured to the box by means of screwbolts, (1.

C is the journal resting in bearings consisting of a set of longitudinalrollers, D. These rollers are shown in Figs. 1 and 2, and in detail inFig. 3. They are each provided at both ends with a leather cap, F. Toreceive such vided for between the end of the plug and the end of theroller, to hold a quantity of sulphur, p.

The object of the leather cap described is to provide an anti-frictionbearing for the head of each roller against the plane surface of thehead of the journal box, when end thrust or movement takes place, andthe object of the employment of the sulphur is to indicate by the smokeand odorous fumes, especially the latter, produced when the journalbecomes hot, the presence of such heat and by this warning to preventthe destruction of the journal by heat. I prefer that the cap should bemade of leather, as it is the best material of which I am at presentaware for the purpose intended; and I prefer the use of sulphur for thesame reason. But I do not desire to restrict myself to those particularmaterials if equivalent materials performing the same functions in thesame or a better manner be employed. The leather cap is antifrictionpadding and the sulphur a combustible indicator.

The journal cap, B, is provided with a shoulder, to make a tight fit onthe box, is also-provided with oil holes, 3, through which oil may besupplied to the rollers and journal, and is open at the center to exposethe ends of the journal and the anti-friction rollers.

I do not limit myself to the square cap head as this may be made inother shapes, without departing from my invention.

Having thus described my invention, what I claim is- 1. In a journalbearing the combination with a box provided with the cap having a planeinner surface, of the journal, the antifriction bearing rollers eachprovided with a leather cap at its opposite ends, a receptacle betweensuch cap and the roller and sulphur within such receptacle,substantially as and for the purpose described.

2. A journal bearing comprising the rollers,

D, each provided with end anti-friction padmaterial in said receptacles,substantially as dings,in combination with the box and its redescribed.to movable head, having an inner plane surface In testimony whereofIaffix my signature in against which said padded ends may contact,presence of two witnesses.

5 substantially as described. MATHIAS B. JONES.

3. The box in combination with the journal Witnesses: and theanti-friction rollers, said rollers pro- M. D. TAF'T,

vided with the receptacles, and combustible O. E. DEMERIE.

